Genetic variation among selected pure lines from Turkish barley landrace 'Tokak' in yield-related and malting quality traits

Aim of study: Improvement barley cultivars for malting traits suffers from narrow genetic pool in these traits. Landraces are resources that could be used this purpose. The present study was conducted to determine the variation quality within a Turkish landrace. Area undertaken Tokat, province Black Sea Region Turkey. Material and methods: Twenty-five diverse lines, out 42 unique genotypes previously identified ‘Tokak’ landrace (PI 470281) based on DNA markers, were evaluated along with cv. ‘Tokak 157/37’ four field trials. Thousand-seed weight, test grain yield, lodging, malt extract percentage, diastatic power, alpha amylase beta glucanase activities, protein starch contents determined. Main results: Principal component analysis revealed thousand-seed activity, activity power most discriminatory lines. As average trials, 15 25 lines had higher yields 10 percentages than standard cultivar 157/37’. Malt highest Line 59 all environments, line also values content. 215 activity. Lines clearly superior quality. Research highlights: These harbor novel alleles improvement.